Artificial tooth



sept 11, 192e;

C. C. HALLOWELLL.

ARTIFICIAL TOOTH Filed March C50, 1926 attoznm and flanged head 16 extending parallel with the face 13, said web 15 being arranged to enter the slot 7 and the head 1G to enter the recess (liu the tootl1-body1,so;as to interlock therewith andrigidly engage the tooth-body 1 in interlocked engagement with the cusp struct-ure 12. y "i 'f j The cusp structure 12 inay be supported in any suitable manner to afford a mouuting'ior the tooth-body 1, such, for instance, as shown in Fig. 7, 'wherein two Yof the cusp structures 12 are Adisposed side yby side .between the caps 17 and 18,`to which they are soldered to form anintegral `bridge structure, said caps l'fand V18 beig'carried by vnatural tooth sitioh on lthe'cusp"structure 12 'jhyz sliding the 5 upon the facelas shown in Fig. 3, iintilf the tootlibodyljrcgisters with the 'cusp structure 12,. asslicwn in Figs. 1 and 2.

@In the forni 'of invention shown in Fig. S, jthe" 'tooth-body* lvhals its `ocelusallyv dis'f posed end f ace'formedf'oftheeonvexed surfacefmerging `forwardly into the plane silbstantiallyV horizontal lsurface, and having thev undercut recess arranged to receiveffproje'c'tion` 3'( onthe inner endwface 'coinp'rising "y thev correspondingly 'c'oneaved and planesurfaces forming the complementary adj acentv facev of ithe icusp structure 42. By extending the ioeclusally' directed face of thegtooth-body forwardly in a plane the Arnfetal.ofivvlricli the cusp structure is formed, thatwi'llV visible ffrom the rontf "the totlninaybe greatly reduced. f "inyentiongis advantageousin lthat by forming: the occlusallylv disposed surface .of the tooth-bodyffl conventi', andthe kinner surface offthe cuspstrl1cture'12 correspondingly eoncfav'ed, Y the'iapieel "root extension L2 may betirstnsertetl intofthe extracted tooth socket the toothibody rocked into place abouttan'iaxis lso disposed that' said apical rootextension Willrtate iu'fsaid socket.

"Ido not de'siretoy limit'niyinvention to the.

precise details of` construction jand arrangermentiy as "herein `set forth, asfit is' 4obvious thatyarious' niodi'fcationsy may .be inade thereini'ivithout ddeparting .from the essential featuresof my invention :is-defined in the `appended claims. '2 "1f f "Having thus'described my ,invention, I

i 1.'^"An`-artificial tooth comprising a toothtionfnpon the cusp str ucture,j\\"hi1e the root end of the tooth-body is rotatably el'igaged in the guin socket and the cusp structure is rigidly supported in` spaced relation to said. ygum socket, and each having means m then' opposed surfaces complementary to guide said opposed surfaces in slidable relation into registry, and to linterlock said tooth-body and cusp structure together. i

2. An artificial tooth comprising a toothbody having a root extension, and aconvexed occlusally disposed end face provided ivith a recess `directed forwardly'in'parallel relation with said convexed end Iface.

, 3. VAn artiticial tooth comprising ar tootln body having a roothextension," anda coniy vexed oeclusallv disposed end face'provided' with a recess directed forwardly in parallel relation with said convened end face, and aeusp structure having a similarly concavcd inner end facev conforming to' said convexed end face andprovided with means arranged to interengage said recess. f

4.*An articial tooth-comprising a toothbody havin# a root extension, and a convexed occlusally disposed 'end face provided with a, recess extending 'forwardly in `parallel 'relation with said endfface, and terminating short of the outer lateral faceof said'toothbody, anda cusp structure having a similarly concaved inner end faceeonforming to said convexed `face, and provided with anover-l hanging projection arranged `to cooperate vvith .said Vrecess to engage said toothhody andl cusp. in interlocked relation.'

5; An artificial 'tooth eonlprisinga tooth body having a rootextensin'fterininating in a conoidalfapex and having fconvexed oeclusally disposed 'end faceprovided `with a recess directedfomvaijdly in parallelr'rela 'i tion? withfsaidend Yface, and aY cusp structure having a yalflnlarly 'concaved )nner 'end 4face conforming to the convexed e'ndface of said tootlihodyaand lavinga headed'projection complementary 'tothe undercut; recess Lin said tooth-body, and 'arranged to eifecta"slidinv relation between` said convened" and concave surfaces and ^to' afford]` anf interlocking eng gegen-lent heimasaiaaaapoay afrdjcpgsp structure.

posed end face eurving'ahout said apex asr a .centel and having an y undercut recess therein 'curvedin parallel relation therewith, and terminatingshort of the outerlateral face of said tooth-body uand a cusp `striictu'r'e having 'a eoncavetl inner'jend face4 slidably eonforming'to`the convened/end face oisaidv twill-body' and havin@ a heeded proieto Acomplementary to i said undercut recess and cooperative therewith to Yguide said tooth# body into' registrywithv said" cusp rstructure and to retainitthus engaged.

Ill

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lon y lli 9. An artifcialtooth comprising' a tooth!y body and a cusp structure, the tooth-body having a root extension and a convexedly curved ocelusally disposed end surface, said cusp structure 'havmg a complementary curved end surface, VsaidV tooth-body and cusp structure having opposed means distinct from the opposedeurved surfaces of said tooth-body and said cusp structure, constructed and arranged to guide the toothbody and cause it to rock into operative position with the cuspstructurewhile the root extension is substantially rotatably engaged in thegum socket and said opposed curved end surfaces are maintained in slidable relation. 4 In Witness whereof, I have hereuntoset my hand this twenty-ninth day of `March, y

A.; VD., CLIFTON I-IALLOVVELL.V 

